Refrigerating apparatus



. Oct. 21, 1930. U I 1,779,317"

REFRIGERATiNG APPARATUS Original Filed May 30, 1923 2 Sheets-Sheet 1 /f///V//l//// flatness-es [nuenior I 7 Harry E. Hall.

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M's A ttorncy.

Oct. 21, 1930. H. B. HULL 1,779,317

REfRIGERATING APPARATUS Original Filed May so, 1923 2 Sheets-Sheet 2 M'fneas es fnventqr HarryB.Hu/l.

I By uwapk H'is A ttorney.

' Patented 0a. 21, 1930 UNITED sures HARRY B. HULL, OF DAYTON, OHIO,

AIRE CORPORATION,

mmomwrmq urana'rus Application The present invention relates to refrigerating apparatus and aims to reduce the amount of heat conducted throughthe Walls of the refrigerating cabinet while providing for the proper cooling of food and for the freezing of water. I

In order to attain this aim of the invention the cooling apparatus is arranged so as to provide a relatively cool zone, in which water can be frozen, and which is spaced from the interior walls of the cabinet so that these Walls are not directly subjected to the coldest zone of the refrigeraat the same time ASSIGNOR, BY has assronmmrrs, "r0 Famin- A companion OF/DELAWABE mea Kay so, 1923, Serial no. 642,369. Renewed October as, 1927.

The refrigeratin 35 is carried from the top'wall -24 of the refrigerator cabinet by a series of straps. Straps 36 encircle an evaporating chamber 37 of the unit 35 and are connected to the top wall 24 by bolts 38. The evaporator chamber 37 forms a header and is connected with a series of parallel spaced pipes 39 which arev supported by the top ,wall 24 by a strap 40. Each of the pipes 39 forms a loop 42 encircling ice tray shelves carrying ice trays 43.

Thelloops 42 are insulated from the rest of the cabinet by fiat .pieces of insulating mator, but are spaced therefrom by air c1rcu- -terial 45, such as fiber, which are held against latjng through the food and cooling compartthe loops 42 by straps 46 and clamping bolts ments. In other words, the ,water freezing 47 zone is isolated from the cabinet walls by a zone of warmer air circulati 1g adjacent the interior walls of the cabinet. In this manner, the'difler'ential in temperature between the interior and exterior walls of the cabinet can be reduced, while maintaining a water freezing zone, and the heat exchange through the cabinet walls can therefore be materially reduced.

Other and further objects of the present invention will be'apparent from the following description reference being had to the accompanying drawings wherein a preferred embodiment of one form of the present invention is clearly shown.

In the drawings: Fig. 11's a front view partly in section of a refrigerating cabinet to which the present invention is applied;

Fig. 2 is a sectional 2-2 of Fig. 1; and V I Fig. 3 is a sectional view taken on line 33 of Fig. 1 showing the cooling apparatus in elevation.

Referring to the drawings,

view taken on line 20 is a refrigerator cabinet having side walls 21 and 22, a

back wall 23, a top wall 24 and a front Wall. 25 which form a rectangular shape box. The front .wall 25 is provided with openings which are closed by doors 27, 28, and 29, the door 29' being shown cooperating with an opening 30. .A lining 32 is insulated from the walls of the refrigerating cabinet by any suitable material such as cork .33.

from the ment assists in maintaining ily adapt themselves to the interior surface of the lining 32. The bottom wall 50 slopes toward a drain connected with drain pipe 54.

The battle plate divides the cabinet into a food compartment and a cooling compartment 56 connected by passages 57 and 58 which are formed by terminating the walls 49 and 50 short of the side wall 22 and top wall 24, respectively. Hence the ice freezing zone including the ice trays 43 is more remote 58 lining 32 than the passages 57 and The loops 42 enclose the relatively cold ice freezing zone in the cooling compartment. Heat transfer to this zone and to the exposed portions of the pipes 39 operates to maintain the compartment cool enough for food-Tn the refrigerator cabinet. The colder. air passes downwardly through the passage 57 and circulates through the food compartment from whence it passes into the cooling compartment 56 through passage 58; The pas- 57 and 58 are sufficiently large to form sages I an unrestricted'passage for the air. The air circulating through the cooling compart-.

the interior walls of the cabinet at-atemperature substantially above the temperature of; the water freezing element or cooling unit zone, while yet'providing sufiicient refrigeration for the food compartment.

The entire cooling unit and the bafiie plate form a subassembly which can be removed in assembled relation through the opening 30 after brackets 36 and 40 have been detached. The bafile plate can be re moved through opening 30 while the rest of the cooling unit remains in position within the cabinet. After removing bolts 51. the baffle plate is moved so that the wall is vertical and wall 49 is horizontal, and wall 50 is located between the tank 36, and the left hand lining wall. Then the baflle plate can be withdrawn through opening 30.

en assembling the cooling unit 35, the strips 52 are bent outwardly so that the width of the wall 49 including strips 52 is slightly greater than the depth of the interior of the cabinet; and. when the cooling unit is assembled, the pliable strips 52 will bend to adapt themselves to the contour of the lining.

One of the principal advantages of the present invention is that the temperature differential between the outer and inner walls of the cabinet is relatively uniform; and therefore the heat exchange between these walls is substantially no greater at one place than at another. inner walls will be substantially no greater than required for food cooling, although the freezing zone. which is remote from the interior walls. is at a lower temperature. Therefore the heat exchange to be compensated for by the operation of the refrigerating apparatus is practically no greater than would obtain if the freezing zone were not present. Consequently the present invention reduces the cost of refrigerating food and freezing ofwater for ice.

While the form of mechanism herein shown and described constitutes a preferred embodiment of one form of invention, it is to be understood that other forms might be adopted and various changes and alterations made in the shape, size. and proportion of the elements therein without departing from the spirit and scope of the invention.

\Vhat is claimed is as follows:

1. Refrigerating apparatus comprising in combination a cabinet. a refrigerating element in the cabinet and supported thereby, and a partition supported by the element for separating the cabinet into a storage compartment and a compartment containing the element.

2. Refrigerating apparatus comprising in (Oll'lhlllfltlOll a cabinet having an opening. a refrigerating clen'ient. and a partition wall separating the cabinet into a storage compartment and a compartment containing the element. the wall being detachably mounted on the element and removable, through the opening.

'The temperature at the 3. Refrigerating apparatus comprising in combination a cabinet having an opening, a refrigerating element supported by the cabinet. and a partition wall separating the cabinet -into a storage compartment and a compartment containing the element, the wall being detachably secured to the element and removable from the cabinet through the opening without disturbing the element.

4. Refrigerating apparatus comprising in combination a cabinet having an interior wall, a partition dividing the cabinet into compartments and having a pliable edge adapted to conform to the interior wall.

5. Refrigerating apparatus comprising in combination a cabinet having an interior wall, a partition dividing the cabinet into compartments including a wall disposed perpendicular to the interior wall of the cabinet, the partition wall including a pliable edge for contacting with and conforming to the surface of the interior wall.

6. Refrigerating apparatus comprising in combination a cabinet, 21 refrigerating element, a partition wall separating the cabinet into a storage compartment and a compartment containing the element, and support ing means for detachably supporting the wall and element within the cabinet.

7. Refrigerating apparatus comprising in combination a cabinet, a refrigerating element. a partition wall separating the cabinet into a storage compartment and a compartment containing the element, and supporting means for the element and partition wall. said supporting means detachably connected to a wall of the cabinet.

8. Refrigerating apparatus comprising in combination a household type refrigerator cabinet having a door opening, a refrigerating element. and a substantially L-shaped partition wall separating said cabinet into a substantially L-shaped storage compartment and a compartment containing said element. the wall being detachably mounted in the cabinetand removable through the door opening.

9. Refrigerating apparatus, comprising a cabinet; a partition dividing the cabinet into a cooling compartment and a storage compartment. said partition providing assages for the circulation of air between he compartments and having an impervious portion: and a refrigerating element in the cooling compartment. said element providing a freezing device disposed adjacent the 1mpervious portion of the partition and having portions extending toward said passages for cooling the circulating air currents.

10. Refrigerating a paratus com rising a cabinet; a partition dividing the ca inet in to a cooling compartment and a storage compartment, said partition'having openings for the circulation of air between the co partments and providing a pocket out of the path of thecirculating air; and a refrigerating element 1n the coolingcompartment having conduit means for refrigerating medium, a

portion of said means extending mtoithe a cooling compartment anda storage compart of said means being openings; and a partment, said partition having openings for the circulation of air between the compart-y ments and providing a pocket out of the path of the circulating air; and a refrigerating element in the cooling compartment having conduit means for refrigerating medium, a portion of said means extending into the. pocket and providing a freezing device, and disposed in the path-of air currents circulating through the shield cooperating with the partition to enclose the freezing device.

12. In a refrigerating apparatus, a refrigerating element including a top supply header for supplying liquid refrigerant by gravity to refrigerating ducts; a plurality of ducts connected to the header in parallel circuit relation for circulating refrigerant, portions of the ducts cooperating-to enclose a freezing space and other portion'sof the ducts being disposed remote from the freezing space for cooling circulating air; and a shield between the portions which enclose the freezing space and the other portions. 13. In a refrigerating apparatus, a refrigerating element including a plurality of conduits in parallel circuit relation for circulating refrigerant, each of the conduits having a portion cooperating with the corresponding portions of the other conduits to enclose a freezing space, and a portion disposed horizontally remote from the freezing space for cooling circulating air; and a shield between the portions which encl0se ,the freezing space and the other portions. I

14. In a refrigerating apparatus, a refrigerating element including. a top supply header for supplying liquid refrigerant to a' plurality of conduit means, a plurality of conduit means for circulating refrigerating medium connected to the header in parallel circuit relation, part of said means enclosing a freezing space and another part of said means being disposed laterally of the freezing space for cooling circulating air passing alongside said space, and a shield between 7 medium connected to said parts.

15. In a refrigerating apparatus, a re-' frigerating element including a header, con-' duit means for circulating refrigerating the header in parallel circuit relation, part of said means enclosing a freezing space and another part of said means being disposed remote'from and on a supported thereby, :by the element into a storage compartment 'ment containing plurality of sides of the freezing space for cooling circulating air passing along said sides, and a shield between said parts.

'16. In a refrigerating apparatus, a refrigother of said conduits to form an enclosure for an ice-making receptacle, and a portion disposed horizontally remote from the enclosure for cooling circulating air.

17 In a refrigerating apparatus,

eratin telement having a top supply header for supplying liquid refrigerant by gravity torefrigerating conduits and a plurality of conduits connected-with the header in parallel circuit relation for circulating refrigerating medium, each of said conduits having a looped portion cooperating with the like-portions'of other of said conduits to form an enclosure for an'ice-making receptacle, the enclosurefor cooling circulating air.

18. In a refrigerating apparatus, a refri crating element comprisin a top supp y header for supplying liqui refrigerant by gravity to a plurality of refrigerant conduit means, a plurality of conduit means connectedto the header in parallel circuit relati'on for circulating refrigerating medium, part of said means being disposed remote from the header and enclosing a freezing;

19. Refrigerating apparatus comprising in combination a cabinet having a vertical wall,

a refrigerating element in the cabinet and and a partition supported separating the cabinet and a compartthe element, the partition including a vertical wall spaced from the vertical wall of the cabinet to permit the circulation of air between said walls.

20. Refrigerating apparatus, comprising a cabinet .hgyi'ng a storage compartment, 2.

for

cooling compartment, and openings for the circulation of air betweenthe compartments; and a refrigerating element Within the cooling compartment including a header, means for circulating refrigerating medium connected to the header inparallel circuit relation, part of said means enclosing a freezing space out of the path of air currents circulating through the openings and part, of said means being exposed to the air currents on a plurality of sides of the freezing space.

21. Refrigerating apparatus comprising in combination, a cabinet and a removable subassembly including a refrigerating element and a. partition 'dividing the cabia looped pora refrigand a portion extending remote from conduit net into a storage compartment and a cooling compartment containing the element.

22. Refrigerating apparatus comprising in combination a household type refrigerator cabinet having a door opening, a refrigerating element, and a partition wall separating said cabinet into a compartment containing said element and a storage compartment below and at one side of the refrigerating element, the wall being detachably mounted in the cabinet and removable through the door'opening.

23. Refrigerating apparatus comprising in combination a household type refrigerator .cabinet having a door opening, a refrigeratmg element, and a partition wall separating the cabinet into a compartment containing said element and a storage compartment, part of which is located below said element, the wall providing passages for the circulation of air between the compartment and being detachably mounted in the cabinet and removable through the door opening.

24. Refrigerating apparatus comprising a cabinet having a storage compartment, a i

cooling compartment, and openings for the circulation of air between the compartments; and a-refrigerating element within the cooling compartment mcluding a header, a plurality of conduit means for circulating refrigerating'medium connected to the header in parallel circuit relation, part of said means being exposed to the air circulating between the openings to cool said air, and another part of said means extending laterally fromsaid first mentioned part and out of the path of air currents circulating between said openings, said other part enclosing a freezing space out of said path.

. 25. Refrigerating apparatus comprising a cabinet having a compartment to be refrigerated, a refrigerant conduit within said compartment for cooling air and inducing the circulation of the air in a predetermined path, the compartment including a corner out of the path of the circulating air, a shield in the corner, and a refrigerant conduit for freezing ice enclosed by the shield in said corner'and connected to the firstmentioned conduit.

In testimony whereof he hereto aflixes his signature.

HARRY B. HULL. 

